Results 31 to 40 of about 712,718 (291)
A fast 4D B-spline framework for model-based reconstruction and regularization in vector flow imaging [PDF]
, 2018 A generic framework for model-based regularization and reconstruction is described, with applications in a wide range of noisy measurement scenarios. The framework employs automatic differentiation and stochastic gradient optimizers to perform online ...
Gronli, Thomas +3 more
core +2 more sources
Electromagnetic form factors of charged and neutral kaons in an extended vector-meson-dominance model [PDF]
, 2006 A model is developed for electromagnetic form factors of the charged and neutral K-mesons. The formalism is based on ChPT Lagrangians with vector mesons. The form factors, calculated without fitting parameters, are in a good agreement with experiment for
A. Aloisio +44 more
core +2 more sources
Fitting an error distribution in some heteroscedastic time series models [PDF]
, 2006 This paper addresses the problem of fitting a known distribution to the innovation distribution in a class of stationary and ergodic time series models.
Koul, Hira L., Ling, Shiqing
core +2 more sources
Structured vector fitting framework for mechanical systems
IFAC-PapersOnLine, 2022 In this paper, we develop a structure-preserving formulation of the data-driven vector fitting algorithm for the case of modally damped mechanical systems. Using the structured pole-residue form of the transfer function of modally damped second-order systems, we propose two possible structured extensions of the barycentric formula of system transfer ...
Werner, S., Gosea, I., Gugercin, S.
openaire +3 more sources
Research on Sentence Vector Representation and Similarity Calculation Method About Microblog Texts [PDF]
Jisuanji gongcheng, 2017 In Word2vec framework,aiming at the feature of Microblog text,this paper proposes the method using word vector or sentence vector of high dimension word database mapping calculation,and constructs sentence vector using three algorithms:Using Word2vec to ...
DUAN Xulei,ZHANG Yangsen,SUN Yizhuo
doaj +1 more source
Accurate and Numerically Stable FDTD Modeling of Human Skin Tissues in THz Band
IEEE Access, 2022 We propose finite-difference time-domain (FDTD) modeling suitable for healthy skin, basal cell carcinoma, dysplastic pigmentary nevus, and non-dysplastic pigmentary nevus in the frequency range of 0.25 THz to 1.05 THz. Toward this purpose, we utilize the
Jaesun Park +2 more
doaj +1 more source
Vector Field k‐Means: Clustering Trajectories by Fitting Multiple Vector Fields [PDF]
Computer Graphics Forum, 2013 AbstractScientists study trajectory data to understand trends in movement patterns, such as human mobility for traffic analysis and urban planning. In this paper, we introduce a novel trajectory clustering technique whose central idea is to use vector fields to induce a notion of similarity between trajectories, letting the vector fields themselves ...
Ferreira, Nivan +3 more
openaire +2 more sources
Frequency-Dependent Pi Model of a Three-Core Submarine Cable for Time and Frequency Domain Analysis
Energies, 2018 In this paper, a Frequency-Dependent Pi Model (FDPi) of a three-core submarine cable is presented. The model is intended to be used for the representation of submarine cables in an Offshore Wind Power Plant (OWPP) scenario for both time and frequency ...
Carlos Ruiz +4 more
doaj +1 more source
Space Weather, 2022 We develop a new methodology for the multi‐resolution assimilation of electric fields by extending a Gaussian process model (Lattice Kriging) used for scalar field originally to vector field. This method takes the background empirical model as “a priori”
Haonan Wu, Xian Lu
doaj +1 more source
Ground-state properties of the one-dimensional electron liquid [PDF]
, 2011 We present calculations of the energy, pair-correlation function (PCF), static structure factor (SSF), and momentum density (MD) for the one-dimensional electron gas using the quantum Monte Carlo method.
A. Recati +7 more
core +2 more sources